#include<stdio.h>
int main (void)
{
    const int FREEZING = 0;
    float temperature;
    int cold_days = 0;
    int all_days = 0;

    printf("Enter the list of daily low temperatures.\n");
    printf("Use Celsius, and enter q to quit.\n");
    while (scanf("%f", &temperature) == 1)
    { 
        all_days++;
        if (temperature < FREEZING)
            cold_days++;
    }
    if (all_days != 0)
        printf("%d days total: %.1f%% were below freezing.\n", all_days, 100 * (float) cold_days / all_days); 
    else
        printf("No data entered!\n");

    getchar();       
    getchar();       
    getchar();       
    return 0;       
}